Answer:
455 miles
Explanation:
585/9 is the result of how many miles they drove in an hour. It is 65 miles per hour. Then you do 65 x 7 to know how many miles will the family drive in 7 hours. The result is 455 miles.
Use cross multiplication, making sure that miles are on top and hours are on bottom:
585(7) = 4,095
4,095/9 = 455
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